kimhyoungchul/tuner

Android accordion tuner

Tuner

An android accordion tuner with strobe and multiple notes. The Windows, Mac and the Android version of this project are also on here. The app is available on F-Droid and here. See the Wiki or the app help screen for detailed documentation.

 

• 32 temperaments including Equal, Just, Pythagorean, Meantone
• Filter options, including low pass, fundamental, note and octave filter
• Optional strobe or musical staff display
• Custom temperaments option
• Transposition option
• Solfège (DoRéMi) option

Using

Hold the phone/tablet near the instrument, play a note, and observe the display. In portrait, the app shows a scope with the input signal, a spectrum showing the processed signal, the main display with the note value, cents error, frequency error etc, a strobe display, and a meter display showing the cents error. In landscape, the app shows just the main display and the meter. There is a signal indicator in the action bar which is useful in landscape mode.

Building

You can either import the app into Android Studio or use standalone Gradle. Don't use installed gradle unless it's the same version as here (see ./gradle/wrapper/gradle-wrapper.properties).

$ ./gradlew [assembleDebug|assemble|build]